Malicious PDF — malware analysis report

Heuristics 7

• ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
  ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
• PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
  PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
• Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
  Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
• Embedded JS stream low PDF_JS
  PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
• External URI info PDF_URI
  PDF contains an external URL action
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://kalashad.com/userfiles/file/69977248703.pdf In PDF document text

  • http://www.keizerco.nl/userFiles/file/36788689783.pdfIn PDF document text
  • https://fitness-sport.it/userfiles/file/vurinoxexigawavopi.pdfIn PDF document text
  • http://hycxchina.com/filespath/files/20210917181919.pdfIn PDF document text
  • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140eda76607e---sevemozovi.pdfIn PDF document text
  • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/631b171081f156c32a21162e45e599ac/77776527139.pdfIn PDF document text
  • http://banlinhkienlaptop.com/userfiles/file/mipiguvokipusiwowirowore.pdfIn PDF document text
  • https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/5e08c984aa6f8021655f173aaa5a6efb/zafirokoradojeza.pdfIn PDF document text
  • http://one9five.com/userfiles/files/pilemeverolowebipo.pdfIn PDF document text
  • http://mrcookie.tw/upload/editor/file/072054032709.pdfIn PDF document text
  • https://prospr.fr/ckfinder/userfiles/files/watokutupijekiseza.pdfIn PDF document text
  • http://www.taxivanclass.com/uploads/ckfinder/files/96738896218.pdfIn PDF document text
  • http://www.tobywells.org/media/fckdir/file/nadaxese.pdfIn PDF document text
  • http://artetendasud.it/userfiles/files/61566091108.pdfIn PDF document text
  • http://jszl-rolls.com/filespath/files/20210905161424.pdfIn PDF document text
  • http://riggi.ru/userfiles/file/pivusetujuzepuniwes.pdfIn PDF document text
  • https://insolite.lu/img/userfiles/files/ruruteragime.pdfIn PDF document text
  • https://konferencii.ru/js/ckfinder/userfiles/files/wovinegipozifabobifin.pdfIn PDF document text
  • https://stl-log.com/htdocs/cljr/data/files/wedefamazezowukamodapav.pdfIn PDF document text
  • https://booburger.myagenda.cz/pictures/editor/files/15774453138.pdfIn PDF document text
  • http://sosonomo.com/ckfinder/userfiles/files/sanekebezusapoga.pdfIn PDF document text
  • http://jinshi66.com/uploadfiles/files/pidisonakoxopuva.pdfIn PDF document text
  • http://www.ssc-ras.ru/ckfinder/userfiles/files/62677874521.pdfIn PDF document text
  • http://insfilings.com/skyzone_classic/upload/files/muberuvisubiz.pdfIn PDF document text
  • http://mclarenquartz.in/ci/userfiles/files/fedibifubokevako.pdfIn PDF document text
  • http://eastindiaspray.com/suvra/eastindia_spray/files/75645807744.pdfIn PDF document text
  • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=mulan+2020+in+romanaPDF link annotation
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://dejavu.sourceforge.netIn PDF document text
  • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

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